California's actions are likely just the beginning of a regulatory debate.
Social-networking sites are fighting over control of users' personal information.
A new satellite could produce color images of objects half the size of those visible to its predecessors.
Samsung and Reactrix move beyond touch screens and try to make hand waving the next big computer interface.
Researchers determine which cells mediate the blood flow tracked in fMRI.
Injectable magnets could let doctors watch diseases at work.
A tiny detector can quickly sniff out dangerous gases.
A capsule-sized camera can be steered through the digestive system.
Microsoft's latest operating system makes it easier to integrate location detection with other services.
Genetically engineered cells make their own nanomagnets, providing clear MRI images.